I am working as a postdoc in a university, and filed I-140 and I-485 (NIW category) in Sep 2005. My I-140 was approved in Oct 2006. Now I get an opportunity to move to a company. They won't support H1 visa. So I need to use my EAD to work. Someone said it is OK to change job as long as you work in the same field. Others said it is better to change within the academic field, and it is risky to move from academia to industry because immigration officer may assume that you will not be able to work for the interest of USA while you work for the interest of the company. Does anyone know the exact answer? Can anyone provide some examples in which people with similar situation are approved or rejected? Thanks a lot!